Calculation of Relativistic Nucleon-Nucleon Potentials in Three-Dimensions

In this paper, we have applied a three-dimensional approach for calculation of the relativistic nucleon-nucleon potential. The quadratic operator relation between the non-relativistic and the relativistic nucleon-nucleon interactions is formulated as a function of relative two-nucleon momentum vectors, which leads to a three-dimensional integral equation. The integral equation is solved by the iteration method, and the matrix elements of the relativistic potential are calculated from non-relativistic ones. Spin-independent Malfliet-Tjon potential is employed in the numerical calculations, and the numerical tests indicate that the two-nucleon observables calculated by the relativistic potential are preserved with high accuracy

Robotics and Programming Workshops to Stimulate Children's Interest in STEM

IMPACT. 1: Dr. Radin has partnered with community organizations to provide facilities, advertising, registration, and funding so that workshops can be provided without cost to teams. -- 2. Dr. Radin's team has taught these workshops for 4 years, reaching over 1500 elementary and middle school children and their adult mentors. Participants come from Ohio as well as neighboring states of Michigan, Pennsylvania, Indiana and Kentucky.OSU PARTNERS: College of Veterinary Medicine; Department of Veterinary BiosciencesCOMMUNITY PARTNERS: Starbase - Wright Patterson Air Force Base Outreach; iSpace Cincinnati; Rockwell AutomationPRIMARY CONTACT: M. Judith Radin ([email protected])FIRST is an organization that promotes robotics competitions to stimulate children's interest in math and science. Many teams competing in this program are based in elementary and middle schools and available teachers/ mentors often have very limited programming experience, which can result in frustration for both students and mentors. As one of the coaches of a successful robotics team, Dr. Radin helped design an 8-hour interactive programming workshop for elementary and middle school students and mentors

A cluster expansion approach to exponential random graph models

The exponential family of random graphs is among the most widely-studied network models. We show that any exponential random graph model may alternatively be viewed as a lattice gas model with a finite Banach space norm. The system may then be treated by cluster expansion methods from statistical mechanics. In particular, we derive a convergent power series expansion for the limiting free energy in the case of small parameters. Since the free energy is the generating function for the expectations of other random variables, this characterizes the structure and behavior of the limiting network in this parameter region.Comment: 15 pages, 1 figur

No 4 2013 Tomato High Tunnel Variety Trial

Descriptions of tomato varieties trialed in high tunnels, and a system used to trellis them at the Gardiner Crop Research Farm of URI, Kingston, R

Maternal caregivers have confluence of altered cortisol, high reward-driven eating, and worse metabolic health.

Animal models have shown that chronic stress increases cortisol, which contributes to overeating of highly palatable food, increased abdominal fat and lower cortisol reactivity. Few studies in humans have simultaneously examined these trajectories. We examined premenopausal women, either mothers of children with a diagnosis of an autism spectrum disorder (n = 92) or mothers of neurotypical children (n = 91). At baseline and 2-years, we assessed hair cortisol, metabolic health, and reward-based eating. We compared groups cross-sectionally and prospectively, accounting for BMI change. Caregivers, relative to controls, had lower cumulative hair cortisol at each time point, with no decreases over time. Caregivers also had stable levels of poor metabolic functioning and greater reward-based eating across both time points, and evidenced increased abdominal fat prospectively (all ps ≤.05), independent of change in BMI. This pattern of findings suggest that individuals under chronic stress, such as caregivers, would benefit from tailored interventions focusing on better regulation of stress and eating in tandem to prevent early onset of metabolic disease, regardless of weight status